• DocumentCode
    1363429
  • Title

    Ladder-type SAW filters using thinned density of randomly distributed "hot" electrodes

  • Author

    Che-Uk Kim ; Balashov, Sergey M. ; Plessky, Victor P. ; Chang-Woo Nam ; Kyu-Chul Lee

  • Author_Institution
    Univ. of Ulsan, Ulsan, South Korea
  • Volume
    57
  • Issue
    11
  • fYear
    2010
  • fDate
    11/1/2010 12:00:00 AM
  • Firstpage
    2585
  • Lastpage
    2587
  • Abstract
    A new method for the design of relatively narrowband ladder-type SAW filters is proposed. It consists of the thinning procedure and consecutive randomization of positions of the remaining transductive periods inside the IDT to suppress undesirable additional passbands. A 0.9% fractional bandwidth filter on LiTaO3 42°-cut was designed and manufactured using the proposed approach.
  • Keywords
    band-pass filters; electrodes; interdigital transducers; surface acoustic wave filters; surface acoustic wave transducers; IDT; LiTaO3; additional passbands; consecutive randomization; fractional bandwidth filter; randomly distributed hot electrodes; relatively narrow-band ladder-type SAW filters; thinned density; thinning procedure; transductive periods; Band pass filters; Bandwidth; Insertion loss; Passband; Resonator filters; SAW filters; Transducers;
  • fLanguage
    English
  • Journal_Title
    Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0885-3010
  • Type

    jour

  • DOI
    10.1109/TUFFC.2010.1724
  • Filename
    5611705
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1363429